Quadratic Rules

Suppose a pumpkin is thrown from 10 ft above the ground at a speed of 2 feet per second, what would be the rule relating height h to time s?

• h= 100 - 2t -16t²

• h= 2 - 5t -16t²

• h= 10 - 2t -16t²

• h= 10 + 2t -16t²

The rule h= 10 + 80t -16t² represents the height of a pumpkin when thrown from an air-cannon. What is the initial speed of the pumpkin?

• 100

• -16

• 80

• 16

The rule h= 50 + 30t -16t² represents the height of a pumpkin when thrown from an air-cannon. What is the initial height from where it was launched?

• 100

• 50

• 30

• 16

This table represents which kind of function?

• Linear

• Other type (not linear or quadratic)

• Quadratic

Given the transformation function of y=a(bx-c)²+d, what transformation takes place if a is negative?

• Reflects across

• Reflects downward

• shifts up

• shifts left

Given the transformation function of y=a(bx-c)²+d, what transformation takes place if a>1?

• Reflects across

• Reflects downward

• vertical stretch

• shifts left

Given the transformation function of y=a(bx-c)²+d, what transformation takes place if b>1?

• Reflects across

• Reflects downward

• horizontal stretch

• horizontal compression

Given the transformation function of y=a(bx-c)²+d, what transformation takes place if d is negative?

• shifts left

• shifts right

• shifts up

• shifts downward

Given the transformation function of y=a(bx-c)²+d, what transformation takes place if d is positive?

• shifts left

• shifts right

• shifts up

• shifts downward

In this equation y=4x², 4 is in what position?

• a

• b

• c

• d